题目内容

_____

A. On Monday.
B. On Wednesday.
C. On Friday.
D. On Sunday.

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_____

A. To study the daily schedule of the songbirds
B. To discover the relationship between courtship and footwork
C. To research how the dance was invented
D. To find more songbirds dances,

_____

A. Global warming.
B. Nuclear wars
C. Food crisis
D. Economic depression

_____

A. Decrease economic competition
B. Issue more money
C. Provide more food
D. Reduce carbon emissions.

_____

A. Before a routine check.
B. After a prison break.
C. Before a shooting.
D. After an argument.

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